During hot weather, the fan produces a feeling of comfort. This is because
A. fan supplies cool air
B. fan cools the air
C. our perspiration evaporates rapidly
D. conductivity of air increases
Answer: Option C
A. fan supplies cool air
B. fan cools the air
C. our perspiration evaporates rapidly
D. conductivity of air increases
Answer: Option C
A. Zeroth Law of Thermodynamics
B. First Law of Thermodynamics
C. Second Law of Thermodynamics
D. Third Law of Thermodynamics
A black body can absorb radiations of
A. lower wavelengths only
B. intermediate wavelengths only
C. higher wavelengths only
D. all wavelengths
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